ds265188-port-t1-e1-j1-transc Maxim Integrated Products, Inc., ds265188-port-t1-e1-j1-transc Datasheet - Page 79

• Manufacturer Part Number: ds265188-port-t1-e1-j1-transc
• Description: Ds26518 8-port T1/e1/j1 Transceiver
• Manufacturer: Maxim Integrated Products, Inc.

9.10.2 Transmit HDLC-64 Controller
9.10.2.1
The Transmit HDLC-64 FIFO Buffer Available Register (TFBA) indicates the number of bytes that can be written
into the transmit FIFO. The count from this register informs the host as to how many bytes can be written into the
transmit FIFO without overflowing the buffer. This is a real-time register. The count remains valid and stable during
the read cycle.
9.10.2.2
The HDLC-64 status registers in the DS26518 allow for flexible software interface to meet the user’s preferences.
When transmitting HDLC-64 messages, the host can choose to be interrupt driven, or to poll to desired status
registers, or a combination of polling and interrupt processes can be used.
for using the DS26518 HDLC-64 receiver.
FIFO Information
Transmit HDLC-64 Example
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Figure 9-18
DS26518 8-Port T1/E1/J1 Transceiver
shows an example routine